Electric Charges and Fields Quiz

What happens to two of the same electric charges that are close together?

• Attract each other

• Repel each other

• Have no effect on each other

• Create a magnetic field

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When two objects become charged by contact, what happens between the two objects?

• They exchange electrons and acquire the same charge

• They create a magnetic field

• They become neutral

• They repel each other

The closer charges are to each other the _____________________ the electrical force; the further they are the __________________________ the electrical force.

• Positive; negative

• Neutral; charged

• Weaker; stronger

• Stronger; weaker

• Repulsive; attractive

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You can make an iron rod magnetic by:

• Heating it

• Rubbing it with a magnet

• Cooling it

• Bending it

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When a bar magnet is (carefully) cut in half, _______.

• It loses its magnetism

• It becomes two smaller magnets

• It becomes a single pole

• It stops working

What happens when we insert a magnetic material into a loop of wire and attach it to a battery?

• It becomes a permanent magnet

• It becomes an electromagnet

• It loses its magnetism

• It explodes

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What does this illustration represent?

• Magnetic field lines

• Magnetic Material that is not magnetized

• A magnet

• Chemical bonds

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Groups of atoms with aligned magnetic poles are called _______.

• Molecules

• Magnetic Domains

• Ions

• Particles

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A device that transforms electrical energy into mechanical energy is _______.

• Generator

• Electric Motor

• Transformer

• Battery

The strength of a magnet depends on _______.

• Its color

• Its size

• The material it is made of

• Its temperature

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